Doctor profile · Federal record
Dr. Dan Nguyen, M.D.
Family Medicine Physician (CMS: Family Practice) · N Chelmsford, MA
- NPI 1235198334
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10 Adams St
N Chelmsford, MA 018631746
(978) 251-3159
fax (978) 251-0636
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- May 15, 2008
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Massachusetts #209069
- Medicaid
- MA #148831
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235198334. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,187
Distinct HCPCS
10
Medicare allowed
$93,490
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 181 | 138 | $97 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 176 | 176 | $142 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 156 | 156 | $21 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 152 | 108 | $140 | |
G0008 |
Administration of influenza virus vaccine | 130 | 128 | $31 | |
83036 |
Hemoglobin a1c level | 90 | 53 | $10 | |
90662 |
Influenza vaccine split virus, preservative free | 87 | 85 | $54 | |
90688 |
Influenza vaccine, quadrivalent, 0.5 ml dosage | 42 | 42 | $20 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 29 | 24 | $195 | |
82043 |
Urine microalbumin (protein) level | 25 | 24 | $6 |
In context: peer comparison
Among 2 peers in N Chelmsford Family Medicine Physician, average services per provider: 76. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$100
Transactions
5
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas INC. | 2 | $42.41 | |
| Hologic Sales and Service, LLC | 1 | $23.52 | |
| CooperSurgical, INC. | 1 | $17.02 | |
| Inspire Medical Systems, INC. | 1 | $16.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,978
Patients
955
Total drug cost
$59,261
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 551 | 139 | $12,116 |
| Amlodipine Besylate | Generic | 432 | 109 | $3,671 |
| Levothyroxine Sodium | Generic | 418 | 68 | $6,173 |
| Lisinopril | Generic | 368 | 101 | $3,832 |
| Omeprazole | Generic | 339 | 66 | $4,737 |
| Losartan Potassium | Generic | 317 | 90 | $5,714 |
| Simvastatin | Generic | 272 | 59 | $2,691 |
| Metformin Hcl | Generic | 199 | 54 | $2,959 |
| Metoprolol Succinate | Generic | 195 | 51 | $4,416 |
| Sertraline Hcl | Generic | 171 | 37 | $1,698 |
Frequently asked questions
What is Dr. Dan Nguyen's medical specialty?
Dr. Dan Nguyen practices Family Medicine Physician in N Chelmsford, MA.
Where does Dr. Dan Nguyen practice?
Dr. Dan Nguyen practices at 10 Adams St, N Chelmsford, MA 018631746. Office phone: 9782513159.
What is Dr. Dan Nguyen's NPI?
Dr. Dan Nguyen's National Provider Identifier (NPI) is 1235198334, issued by NPPES.
Does Dr. Dan Nguyen accept Medicare assignment?
Yes. Dr. Dan Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dan Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.